John has created a scale that measures "extraterrestrial communication competence." John is torn between which type of validity testing he should employ. Which approach to validity should John utilize?
A)retrospective and face validity
B)face and predictive validity
C)concurrent and construct validity
D)John should employ all approaches to validity that can be employed

Question

Quizplus · Accepted Answer

John should employ all approaches to validity that can be employed because each type of validity testing offers unique insights into the scale's effectiveness and applicability in different contexts. Face validity ensures the scale appears to measure what it's supposed to, predictive validity checks if the scale can predict future outcomes related to extraterrestrial communication competence, concurrent validity compares the scale's results with those of an already established measure, and construct validity examines whether the scale truly measures the theoretical construct of extraterrestrial communication competence. Utilizing all these approaches provides a comprehensive validation of the scale.

John Has Created a Scale That Measures "Extraterrestrial Communication Competence